Device Used for Needle Biopsy

Abstract

A device for needle biopsy with a syringe cylinder, with a plunger displaceable therein as well as with a needle means, which has a plurality of puncture needles and whose channels open into the interior of the cylinder, wherein a ventilation means, by which the volume between the bottom and the plunger can be temporarily connected with the environment, is provided for the interior of the syringe cylinder.

1 . (canceled)  
   
   
       2 . The device for needle biopsy in accordance with  claim 18 , wherein the device has a said stop means, which limits the depth of penetration of the needles into the body in a defined manner.  
   
   
       3 . The device for needle biopsy in accordance with  claim 2 , wherein a spacer, which has holes associated with the needles and can be pushed over the needles in order to limit the depth of penetration into the body, is provided at least as a stop means.  
   
   
       4 . (canceled)  
   
   
       5 . (canceled)  
   
   
       6 . (canceled)  
   
   
       7 . (canceled)  
   
   
       8 . (canceled)  
   
   
       9 . The device for needle biopsy in accordance with  claim 18 , wherein a common protective sleeve, which can be attached by plugging to the syringe cylinder over the needles, is provided for all needles.  
   
   
       10 . The device for needle biopsy in accordance with  claim 18 , wherein a filter means is arranged in the path between the opening of the channels into the tips of the needles and the interior of the syringe cylinder.  
   
   
       11 . The device for needle biopsy in accordance with  claim 10 , wherein the filter means comprises individual filter inserts in the tip-side end area of the said needles.  
   
   
       12 . (canceled)  
   
   
       13 . (canceled)  
   
   
       14 . (canceled)  
   
   
       15 . (canceled)  
   
   
       16 . (canceled)  
   
   
       17 . (canceled)  
   
   
       18 . A device for needle biopsy with a syringe cylinder, with a plunger displaceable therein as well as with a needle means, 
 wherein    the needle means has a plurality of puncture needles, whose channels open into the interior of the cylinder, and a ventilation means is formed by at least one overflow channel, which is formed at a distance from the syringe bottom in the inner wall of the cylinder, wherein the length of the channel in the direction of the cylinder axis makes it possible that the volume between the bottom and the plunger can be temporarily connected with the interior of the cylinder that is located above the plunger via at least one overflow channel.    
   
   
       19 . The device in accordance with  claim 18 , wherein the needle means has a plurality of puncture needles.  
   
   
       20 . The device in accordance with  claim 18 , wherein at least one indicator projection, which projects from the inner wall of the cylinder and can be overcome by the plunger, is provided at a distance from the bottom of the cylinder.  
   
   
       21 . The device in accordance with  claim 18 , wherein at least some of the puncture needles of the needle means have different lengths.